Au1200: kill IDE driver function prototypes

Fix these warnings emitted when compiling drivers/ide/mips/au1xxx-ide.c:

include/asm/mach-au1x00/au1xxx_ide.h:137: warning: 'auide_tune_drive' declared 
`static' but never defined
include/asm/mach-au1x00/au1xxx_ide.h:138: warning: 'auide_tune_chipset' declared
 `static' but never defined

by wiping out the whole "function prototyping" section from the header file
<asm-mips/mach-au1x00/au1xxx_ide.h> as it mostly declared functions that are
already dead in the IDE driver; move the only useful prototype into the driver.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

drivers/ide/mips/au1xxx-ide.c

@@ -56,6 +56,8 @@
 static _auide_hwif auide_hwif;
 static int dbdma_init_done;
 
+static int auide_ddma_init(_auide_hwif *auide);
+
 #if defined(CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA)
 
 void auide_insw(unsigned long port, void *addr, u32 count)

include/asm-mips/mach-au1x00/au1xxx_ide.h

@@ -122,24 +122,6 @@ static const struct drive_list_entry dma_black_list [] = {
 };
 #endif
 
-/* function prototyping */
-u8 auide_inb(unsigned long port);
-u16 auide_inw(unsigned long port);
-u32 auide_inl(unsigned long port);
-void auide_insw(unsigned long port, void *addr, u32 count);
-void auide_insl(unsigned long port, void *addr, u32 count);
-void auide_outb(u8 addr, unsigned long port);
-void auide_outbsync(ide_drive_t *drive, u8 addr, unsigned long port);
-void auide_outw(u16 addr, unsigned long port);
-void auide_outl(u32 addr, unsigned long port);
-void auide_outsw(unsigned long port, void *addr, u32 count);
-void auide_outsl(unsigned long port, void *addr, u32 count);
-static void auide_tune_drive(ide_drive_t *drive, byte pio);
-static int auide_tune_chipset(ide_drive_t *drive, u8 speed);
-static int auide_ddma_init( _auide_hwif *auide );
-static void auide_setup_ports(hw_regs_t *hw, _auide_hwif *ahwif);
-int __init auide_probe(void);
-
 /*******************************************************************************
 * PIO Mode timing calculation :                                                *
 *                                                                              *